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		三种典型轴向运动结构的振动特性对比 1)
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			COMPARISON OF VIBRATION CHARACTERISTICS OF THREE TYPICAL AXIALLY MOVING STRUCTURES 1)
			 
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		 图5. 板和窄板的频率($\omega_{n1}$和$\omega_{n})$随长宽比的变化  | 
	
Fig. 5. The frequencies of the plate ($\omega_{n1})$ and the panel ($\omega_{n})$ vary with the aspect ratios  | 
	
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